Home / 13,113.12-19,663.74-4,791.72

Finding the Fourth Proportional to 13,113.12, 19,663.74 and 4,791.72

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Solution

The fourth proportional to 13,113.12, 19,663.74 and 4,791.72 is: 7,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.12 : 19,663.74 = 4,791.72 : x
  2. Step 2: Convert to fraction form
    13,113.12/19,663.74 = 4,791.72/x
  3. Step 3: Cross multiply
    13,113.12x = 19,663.74 × 4,791.72
  4. Step 4: Simplify right side
    13,113.12x = 94,223,136.23
  5. Step 5: Solve for x
    x = 94,223,136.23/13,113.12
  6. Step 6: Final answer
    x = 7,185.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.